This procedure is applicable to the determination of surface density of materials using the λ-ray backscattering method and λ-ray transmission method, and the determination of surface moisture content of materials using the method of fast neutrons moderated by hydrogen atoms.
SL 275-2001 history
2014SL 275-2014 Field test methods for nuclear density-moisture gauges.Part 2: Field test methods for nuclear depth density-moisture probes
2002SL 275-2001 Field test methods for nuclear density-moisture gauges